diff --git a/docs/grunt/bs-lessdoc-parser.js b/docs/grunt/bs-lessdoc-parser.js
index f4da4238ee670200f28409cd7653ed8e721f36db..2463048193586e5545e3a9aba62f9e4f5537a0ae 100644
--- a/docs/grunt/bs-lessdoc-parser.js
+++ b/docs/grunt/bs-lessdoc-parser.js
@@ -13,6 +13,8 @@ Mini-language:
   //== This is a normal heading, which starts a section. Sections group variables together.
   //## Optional description for the heading
 
+  //=== This is a subheading.
+
   //** Optional description for the following variable. You **can** use Markdown in descriptions to discuss `<html>` stuff.
   @foo: #ffff;